Just spotted a new offer on my AMEX Gold MR card. Spend £20 or more (presumably in a single transaction) at either WHSmith, Ocado, Post Office or Shell and receive a bonus 500 Membership Reward points.

The offer is listed as 'Everyday Spending'.

It's valid for the first 20,000 cardmembers until 24/9/17

The terms are:

Offer valid online at ocado.com, in-store and online at whsmith.co.uk and in-store only at Shell and Post Office.

about £2.50.... at least if you spend it on Amazon... but it really depends what you want to exchange them for.... it's a bit like tesco clubcard points, on some things it's not a great deal but on others its very good.